During most of this past basketball season (when I was coaching) I was doing this schedule:
MWF: 1 meal early (6:30am), one meal late (7:00)
TuTh: Fasting day, one late meal (7:00)
SaSu: Meal out (noon), one later meal (6:00)
And I am definitely with you on the subjective drop in body temperature when working on a longish (15+ hours) fast. I've been fasting today and haven't had to turn on my A/C at all.
I can't really recall if I was experiencing the drop in BT on the days when I ate twice or not.